\documentclass{article}
\usepackage{amssymb,amsmath,amscd,concmath}
\pagestyle{empty}
\begin{document}
\begin{equation*} i \hbar {\partial\over\partial t} \left| \psi (t) \right\rangle = H(t) \left| \psi (t) \right\rangle \end{equation*}
\end{document}
